<template>
  <view>
  <view class="search-box">
   <uni-search-bar @confirm="search" @input="input" :radius="100" cancelButton='none'  ></uni-search-bar>
  </view>
  <view class="sugg-list" v-if="searchResult.length!==0">
    <view class="sugg-item" v-for="(item,i) in searchResult" :key="i">
      <view class="goods-name" @click="gotoDetali(item)">{{item.goods_name}}</view>
      <uni-icons type="arrowright"></uni-icons>
    </view>
    </view>
    
    <view class="history-box" v-else>
      <view class="history-title">
        <text>搜索历史</text>
        <uni-icons type="trash" size="17" @click="clean"></uni-icons>
      </view>
      
      <view class="history-list" >
        <uni-tag :text=item v-for="(item,i) in histories" :key="i" @click="gotoGoodsList(item)"></uni-tag>
      </view>
      
    </view>
  </view>
  
</template>

<script>
  export default {
    data() {
      return {
        timer:null,
        kw:'',
        searchResult:[],
        historyList:['a','ab','abc']
      };
    },
    methods:{
      input(e){
        clearTimeout(this.timer)
        this.timer=setTimeout(()=>{
          this.kw=e
          this.getSearchResult()
        },500)
      },
      async getSearchResult(){
        if(this.kw.length==0){
          this.searchResult=[]
          return
        }
        const {data:res}=await uni.$http.get('/api/public/v1/goods/qsearch',{query:this.kw})
        if(res.meta.status!==200)return uni.$showMsg()
        this.searchResult=res.message
        
        this.saveSearchHistory()
      },
      gotoDetali(item){
        // console.log(item.goods_id)
        uni.navigateTo({
          url:'/subpkg/good_detail/good_detail?goods_id='+item.goods_id
          // url:`/subpkg/good_detail/good_detail?goods_id=${item.goods_id}`
        })
      },
      saveSearchHistory(){
        // this.historyList.push(this.kw)
        const set=new Set(this.historyList)
        set.delete(this.kw)
        set.add(this.kw)
        this.historyList=Array.from(set)
        uni.setStorageSync('kw',JSON.stringify(this.historyList))
      },
      clean(){
        this.historyList=[]
        uni.setStorageSync('kw','[]')
      },
      gotoGoodsList(kw){
        uni.navigateTo({
          url:'/subpkg/goods_list/goods_list?query='+kw
        })
      }
    },
    onLoad() {
      this.historyList=JSON.parse(uni.getStorageSync('kw')||'[]')
    },
    computed:{
      histories(){
        return [...this.historyList].reverse()
      }
    }
  }
</script>

<style lang="scss">
  .search-box {
    top: 0;
    position: sticky;
    z-index: 999;
  }
  .sugg-list{
    padding: 0 5px;
  
  .sugg-item{
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 13px 0;
    font-size: 12px;
    border-bottom: 1px solid #efefef;
  
  .goods-name{
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;  
  }
  }
  }
  .history-box{
    padding: 0 5px;
    .history-title{
      display: flex;
      justify-content: space-between;
      height: 40px;
      align-items: center;
      font-size: 13px;
      border-bottom: 1px solid #efefef;
    }
    .history-list{
      display: flex;
      flex-wrap: wrap;
      .uni-tag{
        margin-top: 5px;
        margin-right:5px ;
      }
    }
    
  }

</style>
